MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised or disposable domains. These links likely serve as lures for phishing attacks or to distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://chizclean.ru/files/fck/file/26539068277.pdf In PDF document text
- http://firanywiktoria.pl/uploads/editor/file/57447811416.pdfIn PDF document text
- http://mygiftltd.com/userfiles/file/satavewipodivaxaleze.pdfIn PDF document text
- https://birudongker.com/contents//files/xugomerixulal.pdfIn PDF document text
- http://biaikatolikus.hu/files/file/nebojetulew.pdfIn PDF document text
- http://thebeautyofdesign.nl/ckfinder/userfiles/files/wilabemoxorimiwa.pdfIn PDF document text
- https://jajugroup.com/ckfinder/userfiles/files/jovolumage.pdfIn PDF document text
- http://meadspool.com/clients/8/8e/8e46726fd42f39913d2349bbdb4e70c4/File/65267647945.pdfIn PDF document text
- http://urgentcarepb.net/userfiles/file/78468873458.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abffcbaad19---xatemilibiv.pdfIn PDF document text
- http://cuatudongsaigon.vn/uploads/files/35602536513.pdfIn PDF document text
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/perudupagokuzikiwegojala.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e6139eda5---ruwuxod.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/a486497b9e5936cfe2a00400e6e526ed/66151671747.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607eae5ff31fb---33922176693.pdfIn PDF document text
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/q9kqj0ekilvrr2dfjb7u7o3b7p/17457217634.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/0a87c206af77946b0ec833712a79fcee/37636252816.pdfIn PDF document text
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/0taogiphm8fi4ot55pi0p1tlb1/49353710899.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/ef5182bc30c2657d099e35ba61847e46/popubilafugudebepaj.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/d9627d107fea3b22862fc97be5157c34/62434496148.pdfIn PDF document text
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/50f22f5e58bf11ae96e846cce1238f1d/2291632537.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098e91b79969---birinixarikemezuripezag.pdfIn PDF document text
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/1q9h3g6fs279ob0ttp25pif2ib/15167539175.pdfIn PDF document text
- http://detikakdeti.ru/img/file/vawukesugevujogudukipo.pdfIn PDF document text
- http://dilimkebab.com/userfiles/file/97760622165.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=cellular+and+molecular+immunology+9thPDF link annotation
- http://s292376414.onlinehome.fr/datas/imgmail/file/66897761226.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f397.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF397 | 17572 bytes |
SHA-256: 5c1c2412795a49e098aa0d6496840f5643232dbd018a68cb00c523c03b81bbf5 |
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font_01_sfnt_off0001221f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1221F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013a36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A36 | 11060 bytes |
SHA-256: 73224f63528e854109107aa8892b3c2106b9466ce46482ae507ea9943d4efdf3 |
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